077
CXUS51 KPHI 011852
CLMABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
252 PM EDT MON SEP 01 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 105 08/07/1918
LOW 41 08/30/1986
08/31/1934
HIGHEST 92 08/12 93 -1 94 08/01
08/13
08/17
LOWEST 45 08/31 51 -6 49 08/21
AVG. MAXIMUM 81.7 84.3 -2.6 82.4
AVG. MINIMUM 58.3 62.8 -4.5 61.9
MEAN 70.0 73.6 -3.6 72.1
DAYS MAX >= 90 4 5.0 -1.0 6
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 13.47 2011
MINIMUM 0.76 1995
TOTALS 1.60 4.56 -2.96 5.63
DAILY AVG. 0.05 0.15 -0.10 0.18
DAYS >= .01 7 10.2 -3.2 13
DAYS >= .10 4 7.1 -3.1 7
DAYS >= .50 0 2.8 -2.8 5
DAYS >= 1.00 0 1.3 -1.3 1
GREATEST
24 HR. TOTAL 0.49 08/20 TO 08/21 2.35
SNOWFALL (INCHES)
RECORDS
TOTAL 0.0 MM
SNOW DEPTH 0 MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 0.0
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.0 0.0
DEGREE DAYS
HEATING TOTAL 12 0 12 9
SINCE 7/1 12 1 11 9
COOLING TOTAL 176 268 -92 237
SINCE 1/1 819 860 -41 936
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WIND (MPH)
AVERAGE WIND SPEED 5.4
HIGHEST WIND SPEED/DIRECTION 28/340 DATE 08/13
HIGHEST GUST SPEED/DIRECTION 41/340 DATE 08/13
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 68
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 3
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HEAVY SNOW 0
SNOW 0 LIGHT SNOW 0
SLEET 0 FOG 10
FOG W/VIS <= 1/4 MILE 1 HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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